Learn how to calculate percentage increases with our simple formula, step-by-step examples, and real-world applications. Avoid common mistakes in salary negotiations, investments, and daily expenses. Includes practical tables, FAQs, and tips for accurate results.

Discover exactly how many days make up a billion seconds (11,574 days), with step-by-step calculations, real-world comparisons to decades and generations, and practical applications for understanding massive timescales.